Hatsukoi no Hito to no Hare no Hi ni Reijou wa Uragiri wo Shiru Shiawase ni Naritai node Koushaku-sama no Kyuukon ni Damasaremasen

Tiziano, a young woman, was once engaged to a knight, but he left her due to his chivalric obligations. Now, she has been proposed to by the Duke of her dreams, a man she has long admired. However, on the day of their wedding, Tiziano discovers that the Duke is secretly in a romantic relationship with someone else. Despite her initial intention to exact revenge on the Duke for his betrayal, she finds herself increasingly pampered by him.